feat(esp32s3): add PSRAM support - #5554
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July 24, 2026 22:00
Add runtime initialization, MMU layout, linker script mappings, and targets for ESP32-S3 Quad and Octal PSRAM.
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July 30, 2026 21:05
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I am removing QSPI support for now. The boards I got also have PSRAM connected via Octo-SPI. Apparently all ESP32-S3 boards with 8M PSRAM use OctoSPI. OctoSPI is verified on 2 different ESP32-S3 boards now. |
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PSRAM support for ESP32-S3. Enabled via
numa_psram_qspiandnuma_psram_octalbuild tags.Test on QSPI board with:
./build/tinygo flash -size=short -serial=uart -target=esp32s3-psram-qspi -monitor -panic=trap examples/psramTest on OPI board with:
./build/tinygo flash -size=short -serial=uart -target=esp32s3-psram-octal -monitor -panic=trap examples/psram, should be getting something like this:Partly fixes #3772